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"Microsoft YaHei"; font-size: 14px;"> </span></p><p style="line-height: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">傳真：021-65345053</span></p><p style="line-height: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">地址：上海市青浦區(qū)華新鎮(zhèn)華隆路1758號(hào)</span></p><p style="line-height: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">網(wǎng) 址：</span></p></div> </div> </div> <div id="d0vtihn77sl" class="right"> <div id="d0vtihn77sl" class="sitemp clearfix"> <h2> 模具加熱管很容易壞，有辦法解決嗎？ </h2> <div id="d0vtihn77sl" class="site">您的當(dāng)前位置： <a href="http:///">首頁(yè)</a> >> <a href="http:///news/">新聞中心</a> >> <a href="http:///news/xydt/">行業(yè)新聞</a> </div> </div> <div id="d0vtihn77sl" class="content">  <div id="d0vtihn77sl" class="news_detail"> <h1 class="title">模具加熱管很容易壞，有辦法解決嗎？</h1> <div id="d0vtihn77sl" class="info_title clearfix"> <h3 class="title_bar"> 發(fā)布日期：<span>2020-12-28</span> 作者：<span></span> 點(diǎn)擊：<span><script src="http:///data/include/newshits.php?id=523"></script></span> </h3> <div id="d0vtihn77sl" class="share">  <div id="d0vtihn77sl" class="bdsharebuttonbox"> <a href="#" class="bds_more" data-cmd="more"></a> <a href="#" class="bds_qzone" data-cmd="qzone"></a> <a href="#" class="bds_tsina" data-cmd="tsina"></a> <a href="#" class="bds_tqq" data-cmd="tqq"></a> <a href="#" class="bds_renren" data-cmd="renren"></a> <a href="#" class="bds_weixin" data-cmd="weixin"></a> </div> <script> window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"2","bdPic":"","bdStyle":"0","bdSize":"16"},"share":{},"image":{"viewList":["qzone","tsina","tqq","renren","weixin"],"viewText":"分享到：","viewSize":"16"},"selectShare":{"bdContainerClass":null,"bdSelectMiniList":["qzone","tsina","tqq","renren","weixin"]}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)]; </script>  </div> </div> <div id="d0vtihn77sl" class="content"><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;"><a href='http:///' target='_blank' class='key_tag'><font color=#2086ee><strong>模具加熱管</strong></font></a>很容易壞，有辦法解決嗎？</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">很多使用模具單頭<a href='http:///' target='_blank' class='key_tag'><font color=#2086ee><strong>電加熱管</strong></font></a>的朋友一直苦惱的問(wèn)題，就是<a href='http:///' target='_blank' class='key_tag'><font color=#2086ee><strong>加熱管</strong></font></a>發(fā)黑了，燒不了多久就壞了。</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">那么影響<a href='http:///product/mjdtjrg9a4/' target='_blank' class='key_tag'><font color=#2086ee><strong>模具單頭加熱管</strong></font></a>使用壽命主要有以下幾點(diǎn)：</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">一、功率設(shè)計(jì)</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">功率根據(jù)表面負(fù)荷以及尺寸來(lái)決定，一般表面負(fù)荷為：</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">國(guó)產(chǎn)工藝：5W/cm2；</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">進(jìn)口工藝A級(jí)：5W-12W/cm2 ;</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">進(jìn)口工藝AA級(jí)：12W-15W/cm2 ;</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">進(jìn)口工藝AAA級(jí)：15W-20W/cm2 ;</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">超過(guò)這個(gè)標(biāo)準(zhǔn)模具加熱管的表面負(fù)荷越大，壽命越短。</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">二、材質(zhì)選擇</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">工作環(huán)境、工作溫度不同選擇的材質(zhì)不同。</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">工作溫度在100-300度左右，加熱管材質(zhì)可用不銹鋼304。</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">工作溫度在400-500度左右，加熱管材質(zhì)可用不銹鋼321。</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">工作溫度在600-700度左右，加熱管材質(zhì)可用不銹鋼310S。</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">合理選用電加熱管材質(zhì)，可有效控制電加熱管的使用壽命。（注意：模具加熱時(shí)是否有震動(dòng)性，如有震動(dòng)性建議使用柔韌性比較好的鎳鉻絲）</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">三、管徑與模具孔徑之間的間隙</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">由于空氣對(duì)熱傳導(dǎo)的阻礙作用，當(dāng)管徑與模具孔徑間隙過(guò)大時(shí)，加熱管表面溫度不能及時(shí)傳遞到模具上面，就會(huì)導(dǎo)致電加熱管表面溫度不斷升高，從而電加熱管內(nèi)部溫度升高，當(dāng)內(nèi)部溫度升高一定程度，加熱管就會(huì)燒壞嚴(yán)重時(shí)甚至發(fā)生爆管現(xiàn)象。</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 16px;">那么同時(shí)模具電加熱管管徑與模具孔經(jīng)間隙也不能過(guò)小，因?yàn)槟＞呒訜峁茉诎惭b通電后會(huì)因?yàn)闊崦浝淇s的原理發(fā)生膨脹，很多模具在加熱管壞的時(shí)候取不出來(lái)。</span></p></div> <h3 class="tag">本文網(wǎng)址：http:///news/523.html </h3> <h3 class="tag">關(guān)鍵詞：<a href="http:///tag/%E6%A8%A1%E5%85%B7%E5%8A%A0%E7%83%AD%E7%AE%A1%E4%BB%B7%E6%A0%BC">模具加熱管價(jià)格</a>,<a href="http:///tag/%E6%A8%A1%E5%85%B7%E5%8A%A0%E7%83%AD%E7%AE%A1%E5%8E%82%E5%AE%B6">模具加熱管廠(chǎng)家</a>,<a href="http:///tag/%E6%A8%A1%E5%85%B7%E5%8A%A0%E7%83%AD%E7%AE%A1%E5%85%AC%E5%8F%B8">模具加熱管公司</a> </h3> <div id="d0vtihn77sl" class="page">上一篇：<a href="http:///news/520.html">電加熱管的廣泛運(yùn)用</a><br />下一篇：<span><a 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